ASTROSAT CZTI

Data Quality Report

Orbit 03297

Creation date: 2024-06-27T14:27:15.722834
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G05_228T02_9000000446_03297cztM0_level2.evt modeM0/AS1G05_228T02_9000000446_03297cztM0_level2_quad_clean.evt
Size (bytes)468,529,92072,809,280
Size446.8 MB 69.4 MB
Events in quadrant A2,944,123443,367
Events in quadrant B3,763,532444,559
Events in quadrant C3,982,267433,665
Events in quadrant D3,055,889427,384

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133623
B0153232
C0163292
D0140512

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6527170.260457%
B6527400.612839%
C65271522.328788%
D6527570.873296%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7632 6528 4 4 0.05% 0.06%
B 7632 6528 10 10 0.13% 0.15%
C 7632 6528 136 136 1.78% 2.08%
D 7632 6528 55 55 0.72% 0.84%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 0 118 32241 204.43 749 731 154.1
A 0 50 20744 129.84 749 731 154.1
A 0 226 10688 64.6 749 731 154.1
B 15 204 675917 4575.67 762 745 147.6
B 2 249 65471 438.65 762 745 147.6
B 4 81 41405 275.55 762 745 147.6
C 1 192 467152 2796.17 714 719 166.8
C 7 220 280740 1678.67 714 719 166.8
C 14 223 238121 1423.18 714 719 166.8
D 13 223 220396 1267.27 713 691 173.4
D 9 82 43541 247.16 713 691 173.4
D 1 193 33089 186.87 713 691 173.4

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter